On 2020-09-12 12:49 a.m., Greg KH wrote: > On Fri, Sep 11, 2020 at 04:14:20PM -0600, Alex Hung wrote: >> Default backlight interface is AMD's radeon_bl0 which does not work on >> this system. As a result, let's for ACPI backlight interface for this >> system. >> >> BugLink: https://bugs.launchpad.net/bugs/1894667 >> >> Cc: All applicable <stable@xxxxxxxxxxxxxxx> >> Signed-off-by: Alex Hung <alex.hung@xxxxxxxxxxxxx> >> --- >> drivers/acpi/video_detect.c | 9 +++++++++ >> 1 file changed, 9 insertions(+) >> >> diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c >> index 2499d7e..05047a3 100644 >> --- a/drivers/acpi/video_detect.c >> +++ b/drivers/acpi/video_detect.c >> @@ -282,6 +282,15 @@ static const struct dmi_system_id video_detect_dmi_table[] = { >> DMI_MATCH(DMI_PRODUCT_NAME, "530U4E/540U4E"), >> }, >> }, >> + /* https://bugs.launchpad.net/bugs/1894667 */ >> + { >> + .callback = video_detect_force_video, >> + .ident = "HP 635 Notebook", >> + .matches = { >> + DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), >> + DMI_MATCH(DMI_PRODUCT_NAME, "HP 635 Notebook PC"), >> + }, >> + }, >> >> /* Non win8 machines which need native backlight nevertheless */ >> { >> -- >> 2.7.4 >> > > <formletter> > > This is not the correct way to submit patches for inclusion in the > stable kernel tree. Please read: > https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html > for how to do this properly. > > </formletter> > Sorry about this. I will send V2 to correct it to "Cc: stable@xxxxxxxxxxxxxxx" -- Cheers, Alex Hung